<span class="link_user">@Snaqq</span>, :) Thank you. The thermal cam was there before the grow, but i thought it would be interesting to take a picture with it... It seems that the rule of thumb for air vs leaf temperature is correct for my setup (about 2 °C difference)
<span class="link_user">@Herikus</span>, Thank you. Also thanks for your suggestion, but unfortunately the light is not dimmable, so it is always 150W. The only upside is that the tent is warmer when the light is on.